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Now, I do not quite understand few things in the table in the bottom of the following page:http://www.atmel.com/products/AVR/default_xmega.asp1. "Flash" section is basically how mush code can be fitted in uC, am I right?
2. "SRAM" is temporary memory (same like RAM in a laptop), is it correct?
3. Now, under "12-bit ADC" it says "2x8" and "1x12"; what does that mean and what is the difference?
As I try to keep budget reasonably low, I would still like to go with a DIY programmer.As far as I understand this DIY programmer is fully compatible with ATxmega.http://electronics-diy.com/avr_programmer.phpIs it a good enough option, or should I still consider buying one from Atmel?
Are you making your own MCU board?
Yes, I would like to make my own MCU board; it is for two reasons:*to keep development price reasonably low*to understand better how it works
OK, as I am "Simulation addict" I do all my stuff for now in "safe" environment. Same goes for the model of robot itself Now, a question about H-bridge:What is the difference between using all 4 N-channel Mosfets and using pMosfets for top and nMosfets for bottom ones?Simulation works good both ways.Another question is, why sim does not work when nMosfets go to the top and nMosfets go to the bottom?
Now, under Technical Data it says that Max. load current = 0.7A,however in Data Sheet it states that under Max. Torque current = 9.6ACould someone explain this to me?
I've found another motor that is 6V rather than 12V, however have same specs; how is that possible?
I don't see that stated in the linked data sheet. I do see the Stall Current as 9.6A which is the current at the max torque. Look at the graph to see this, hint: RPM = 0.
The specs call for twice that current at half the voltage so the power is close to the same.
This motor driver should suit your needs quite nicely.
Measure the average continuous current draw of your robot, multiply by runtime in hours, and you will get mAh.
I would guess, though, that a 2200mAh to 6000mAh lithium battery would be plenty for your usage.